Heating system.



PATENTED SEPT. 5, 1905.

S. V. SHAROOD. HEATING SYSTEM.

APPLICATION IILED SEPT. a. 1003.

Inventor Witnesses UNITED STATES PATENT ()EFICE.

SAMUEL V. SHARCOD. OF BROCKTON, MASSACHUSET' .S, ASSIGNOR OF ON E- HALFTO LUCIUS R. CHURCHILL, OF BROCKTON, MASSACHUSETTS.

HEATING SYSTEM.

Specification of Letters Patent.

Patented Sept. 5, 1906.

Application filed September 8,1903. Serial No. 7 ,311-

To (07/ who/1t if 121/11, concern:

Be it known that I, SAMUEL V. Srmaoop, a citizen of the United States,residing at Brockton, in the county of Plymouth and State ofMassachusetts, have invented certain new and useful Improvements inHeating Systems; and I do declare the following to be a full, clear, andexact description of the invention. such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to heating systems, and more particularly tovacuum steam-heating systems designed to be incorporated in steam plantsusing power and in which the exhaust-steam from the engine is utilizedfor heating purposes.

In carrying my invention into effect I attach a steam-pump to the returnend of the system, and by creating a Vacuum in the pipes theexhaust-steam from the engine, which has no back pressure, is drawn intothe system, the steam not absorbed by the system being drawn toward thepump and condensed. Otherwise it would [ill the upper part of thewater-chamber of the pump and render the latter inoperative.

In the accompanying drawings, Figure 1 is a perspective diagram of somuch of a steam heating apparatus as is required to illustrate theapplication of the invention. Fig. 2 is a perspective view of theseparator and connections, a portion of said separator being broken awayto show the internal construction; and Fig. 3 is a sectional view of acheckvalve of usual construction which I utilize in a pipe connection.

In the drawings, 1 represents the water end of a steam-pump, to which isconnected one end of a suction-pipe comprising the parts 2, I, and a,forming the return side of the circuit, through which the water ofcondensation is conducted to the pump. Also connected with the pump isthe delivery-pipe 3, which conducts the heated water of condensation tothe boiler. (Not shown.) The loop or member 4 of the suction-pipe 2 iselevated to an extent suflicient to insure a water seal of the valves ofthe pump and has at the delivery-terminal of the loop a jet-condenser 5.This condenser is of simple construction, consisting of a pipe 6,screwed into the top of an upward extension 7 of the delivery end of theloop. plugged at its lower end, as shown at 8, and provided above theplug with jet-orifices 9 for the production of a spray to condense thesteam and vapor arising from the water as it is drawn into the pump. Thepipe 6 has a controlling-valve 10.

A separator 11 is mounted adjacent to the pump upon a suitablesupporting-standard 12 and comprises a tank or chamber 13, flanged atits upper end for the attachment of a suitable cover 1%. This chamber isconnected with the suction-pipe 2 by means of a pipe 15, having a swingcheck-valve 16 of ordinary construction and a cut-off valve 17 and isalso connected with the pump through a waterdischarge pipe 18, providedwith a cut-off valve 19. The pipe 18 communicates with the chamber 13some distance above its bottom and has a do\vnwardly-projccting nozzleor discharge portion 20, which extends to near the bottom of saidchamber and is submerged in the water contained therein.

In the top of the separator 11 a vaporchamber 21 is mounted and isprovided at its lower end, which normally lies a short distance abovethe level of the water in said chamber, with outlet-ports 22, controlledby needle-valves 23, carried by a stem 24, having anexteriorly-operating handle 25, said stem extending through astufiing-box 26 in the top of said chamber 21. The said chamber 21receives the air and vapor fed into the chamber 13 with the water andpermits the same to discharge to the atmosphere through a discharge-pipe27.

The operation of my invention may be de scribed as follows: The steam isturned on to operate the pump and to allow it to work at a moderatespeed at first. Then the valves 19 and 2A are opened slightly to allowthe air to escape through pipe 27. Thus the pump works like an air-pump,operating against no pressure until the hot water comes. Should watershow at the outlet in pipe 27, the valve 17 should be slightly opened todraw this water into the system again. Then the jet 9 must be opened tosupply sufficient water to keep up a steady stroke of the pump. Thewater necessary to condense the steam at the condenser is returned tothe boiler by way of the pipe /z,th rough the pum p Land out throughpipe 3 to the boiler; but this is not suilicient to supply the amountrequired as a boilerfeed. The loop a in pipe 2 is for the purpose offorming a pocket for water to insure a head of water suflicient toalways keep the valves of the pump submerged to secure a steady strokeof the pump, and the jet 9 at the end of the loop supplies the demand bycondensing the steam as it is drawn toward the pump. As the system getsthoroughly heated the jet 9 and valve 19 may be opened wider, and ifthere is an excess of water the valve 17 may be further opened.

From the foregoing description, taken in connection with theaccompanying drawings, the construction, operation, and advantages ofthe invention will be readily understood Without requiring a moreextended explanation.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a heating system of the character described, the combination witha return-pipe, of a suction and force pump, and a device connected tothe suction-pipe and water-chamber of the force-pump to receive water,vapor and air from the pump above the level of the water-valves thereof,and having an independent vent for the air and vapor, the connectionwith the suction-pipe allowing the water therein above the normalwater-level to discharge by suction to maintain a certain level, wherebythe discharge and Waste of water is prevented, the valve of the pumpkept submerged and the pump is adapted to serve as a suction-pump andboiler-feeder, substantially as described.

2. In a heating system of the character described, the combination witha suction-pipe, of a pump connected with said pipe and provided with aboiler feed-pipe, and a separator connected with said suction-pipe andthe Water-chamber of the pump, the connection with the pump opening intothe bottom of said separator, the said separator being provided abovethe connection with the suctionpipe with a vent for the air and vapor,substantially as described.

3. In a heating systernof the character described, the combination witha suction-pipe, a boiler feed-pipe, a suction and force pump connectedto said pipe, a separator comprising a vessel adapted to receive waterand provided in its upper end with an air and vapor vent, a pipe leadingfrom below said vent to the suction-pipe, and a pipe leading from thewater-chamber of the pump to the separator and extending down thereinand submerged in the water therein, substantially as described.

4. In a heating system of the character described, the combination of asuction-pipe, a boiler feed-pipe, a suction and force pump connected tosaid pipes, a cold-water injector arranged in said suction-pipe, and aseparator connected to the water-chamber of the pump and to thesuction-pipe beyond the said injector, said separator having an air andvapor vent above the suction-pipe and pump connection and having thelatter submerged in the water therein to form a seal, whereby the valvesof the pump are maintained in a submerged position, substantially asdescribed.

5. In aheating system of the character described, the combination ofasuction and force pump, asuction-pipe connected with the pump andlooped adjacent thereto to extend on a higher plane, a cold-waterinjector disposed at the delivery end of the loop, a boiler feedpipeleading from the pump, a separator adapted to receive water, air andvapor from the water-chamber of the pump and connected with thesuction-pipe at the inlet end of said loop and with the water-chamber ofthe pump, said separator having an air and vapor vent above saidconnections, and the pump connection being sealed in the water therein,whereby the discharge of water and breakage of the seal is prevented andthe valves of the pumps maintained in a submerged position,substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

SAMUEL V. SHAROOD.

WVitnesses:

WILLIAM S. RowE, ELMER H. FLETCHER.

